K&N HA-2501 High-Flow Air Filter for 2001-2026 Honda TRX250EX/TRX250TE/TRX250TM

Vehicle Fitment

• 2001-2008 Honda TRX250EX (250 cc ATV)
• 2002-2026 Honda TRX250TE / TRX250TM / TRX250X / Recon/Recon ES (250 cc ATV)

Fitment Notes

• Compatible only with listed Honda TRX250 250 cc models - verify model and year before ordering.
• No engine or carburetor modifications required when used in stock configuration.

Features

• High-flow cotton-gauze filter media for increased airflow and engine performance
• Pleated filter design provides large filtration surface area and long service intervals
• Washable and reusable - pre-oiled and ready to install out of the box
• Direct-fit replacement - installs in OEM airbox with application-specific sealing bead for secure sealing
• Improves throttle response and engine breathing vs. standard paper filters
• Durable construction suited for off-road, ATV, and powersport use (dust, dirt, trails)
• Reduces intake restriction without requiring fuel-management changes
• Long-lasting performance with proper maintenance and periodic cleaning

Specifications

• Filter Shape: Round / Tall
• Height: 4.125 in (105 mm)
• Inside Diameter (flange): 1.438 in (37 mm)
• Outside Diameter: ~3.625 in (92 mm)
• Material: Multi-layer cotton gauze media between wire mesh layers
• Weight: approximately 0.68-0.75 lb (≈ 0.31-0.34 kg)

Included Components

• 1x High-Flow Air Filter (HA-2501)

Product Description

The K&N HA-2501 High-Flow Air Filter is a premium, reusable replacement for the stock air filter on select 250 cc Honda TRX ATVs (TRX250EX, TRX250TE, TRX250TM, TRX250X / Recon models from 2001 through 2026). Engineered with pleated cotton-gauze media, the filter offers significantly improved airflow and filtration capacity compared to standard paper filters - helping to enhance throttle response, engine breathing, and overall performance under off-road and powersport riding conditions.

Because the HA-2501 installs directly into the OEM airbox and uses an application-specific sealing bead, no modifications are required. The filter arrives pre-oiled and ready to ride. It is washable and reusable - when cleaned and re-oiled properly, it offers long service life and reduces the need for frequent filter changes. Ideal for ATV riders who demand reliable performance, better engine response, and easier maintenance, especially in dusty or rugged environments.